Self-channeling of high-peak-power femtosecond laser pulses in air

1995 ◽  
Vol 20 (1) ◽  
pp. 73 ◽  
Author(s):  
A. Braun ◽  
G. Korn ◽  
X. Liu ◽  
D. Du ◽  
J. Squier ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Peak Power ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
High Peak ◽  
High Peak Power

High repetition rate (100 Hz), high peak power, high contrast femtosecond laser chain

2016 ◽  
Author(s):  
R. Clady ◽  
V. Tcheremiskine ◽  
Y. Azamoum ◽  
A. Ferré ◽  
L. Charmasson ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Repetition Rate ◽  
Peak Power ◽  
High Repetition Rate ◽  
High Peak ◽  
High Peak Power ◽  
High Contrast ◽  
High Repetition

The diffraction-ray model of single filamentation of femtosecond laser pulses for estimating characteristics of the multiple filamentation domain in air

2021 ◽  
Vol 64 (1) ◽  
pp. 154-164
Author(s):  
A.A. Zemlyanov ◽  
◽  
Y.E. Geints ◽  
O.V. Minina ◽  
◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Beam ◽  
Peak Power ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Small Scale ◽  
Beam Forming ◽  
Physical Processes ◽  
Multiple Filamentation ◽  
Number Increase

The characteristics of the domain of multiple filamentation of femtosecond laser pulses in air were estimated based on the single filamentation model. As the single filamentation model, the diffraction-ray model is considered. It is based on the representation of a laser beam as a set of diffraction-ray tubes nested in each other that do not intersect in space and do not exchange energy with each other. In this situation changes in tubes shape and cross section during propagation demonstrate the effect of physical processes that occur with radiation in the medium. It is shown that the use of this model for interpreting experimental results and predicting effects is effective. In particular, it was demonstrated that the radius of small-scale intensity inhomogeneities in the profile of a centimeter laser beam, forming the domain of multiple filamentation of subterawatt femtosecond laser pulses, is several millimeters. The power in these inhomogeneities varies from several units to several tens of gigawatts. Telescoping the initial laser beam, leading to an increase in its radius, also expands the sizes of the initial small-scale intensity inhomogeneities and reduces the power contained in them. As a result of this, the coordinate of the filamentation beginning shifts along the path from the source of laser pulses. As the peak power in the beam increases, the length of the filaments and their number increase.

Bundled hollow optical fibers for transmission of high-peak-power Q-switched Nd:YAG laser pulses

2006 ◽  
Vol 45 (27) ◽  
pp. 7174 ◽  
Author(s):  
Ozgur Yilmaz ◽  
Mitsunobu Miyagi ◽  
Yuji Matsuura
Keyword(s):  
Optical Fibers ◽  
Nd:Yag Laser ◽  
Peak Power ◽  
Laser Pulses ◽  
High Peak ◽  
High Peak Power

Femtosecond laser damage resistance of beam dump materials for high-peak power laser systems

2020 ◽  
Vol 59 (05) ◽  
pp. 1
Author(s):  
Praveen K. Velpula ◽  
Daniel Kramer ◽  
Michal Ďurák ◽  
Bedřich Rus
Keyword(s):  
Femtosecond Laser ◽  
Peak Power ◽  
High Peak ◽  
Laser Damage ◽  
High Peak Power ◽  
Power Laser ◽  
Damage Resistance ◽  
Beam Dump ◽  
Laser Systems

130 MW peak power femtosecond laser pulses in a Kerr lens mode-locked thin-disk ring oscillator

CLEO: 2014 ◽  
2014 ◽  
Author(s):  
Abdolreza Amani Eilanlou ◽  
Yasuo Nabekawa ◽  
Makoto Kuwata-Gonokami ◽  
Katsumi Midorikawa
Keyword(s):  
Femtosecond Laser ◽  
Peak Power ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Thin Disk ◽  
Ring Oscillator

Few-optical-cycle laser pulses: from high peak power to frequency tunability

2000 ◽  
Vol 6 (6) ◽  
pp. 948-958 ◽  
Author(s):  
G. Cerullo ◽  
S. De Silvestri ◽  
M. Nisoli ◽  
S. Sartania ◽  
S. Stagira ◽  
...  
Keyword(s):  
Peak Power ◽  
Laser Pulses ◽  
High Peak ◽  
High Peak Power ◽  
Frequency Tunability ◽  
Optical Cycle

scholarly journals Experimental Study of Nanosecond Laser-Generated Plasma Channels

2020 ◽  
Vol 10 (12) ◽  
pp. 4082
Author(s):  
Tadzio Levato ◽  
Michal Nevrkla ◽  
Muhammad Fahad Nawaz ◽  
Lorenzo Giuffrida ◽  
Filip Grepl ◽  
...  
Keyword(s):  
Peak Power ◽  
Focal Length ◽  
Femtosecond Laser Pulses ◽  
High Peak ◽  
Nanosecond Laser ◽  
High Peak Power ◽  
Technical Solution ◽  
Experimental Setup ◽  
Plasma Channels ◽  
Gas Targets

Generation of plasma-channels by interaction of gas targets with nanosecond laser beams was investigated experimentally. Such laser-generated plasma channels are very promising for subsequent guiding of high peak power femtosecond laser pulses, over several tens of centimeters, as required in laser wake field electron-acceleration (LWFA). The experimental setup was based on the use of a cylindrical lens (100 mm of focal length) with the aim of proposing a technical solution easy to be integrated into a compact experimental setup for acceleration of multi-GeV electron beams using high peak-power laser systems. A pilot experiment, showing production of asymmetric plasma channels over a length of several millimeters in N and Ar targets with initial neutral-gas atomic density around 5 × 1019 cm−3, is reported. Plasma effective threshold formation was estimated, along with future optimization of the optical setup for a symmetrization of such plasma channel. Scalability of this concept to several tens of centimeters is preliminarily discussed, along with the corresponding critical requirements for an optimal LWFA scheme.

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